In mythology, Nyx is the mother of day (from night comes day), sleep, dreams, the Fates and the Furies, and the goddess Nemesis, among others. She is sometimes said to be the mother of Charon, the ferry-man for the souls crossing Acheron.
I love the feeling of mystery in this name, that's why I'm using it in a story where 5 girls discover they have special powers. I wouldn't name a child this name, though, because of all the funny looks and reactions to the name the child might get.
I assume this is pronounced ''NIKS''. It sounds just like the slang word for 'nothing' in German, 'nix'. Also, the name would surely lead to nixing jokes. It sounds ugly to me.
Though most of you seem to think it would be an ugly name for a child, or that said child would be made fun of, I think you're wrong. Personally, I think it's a beautiful name that gives you a sense of mystery. As for being made fun of, everyone gets made fun of for their name at some point, or at least most do. Also, it has an interesting origin in Greek mythology. It's fascinating to have a name with a background to it.
Well, this is what I think of the name, it sounds kind of cool and since it's a Greek name it kind of reminds me of this book series called Percy Jackson and the Olympianas. Even though they use Roman names they talk about Gods in this book.